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Orbiter docking system end-to-end test with STS-71 astronauts Orbiter mid-body closeouts Main engine/main propulsion system integrated testing Closeouts, final test and checkout of ET/SRB stack in the VAB

The orbiter power system is being validated today. Installation of the three main engines is scheduled to begin Thursday. Reaction control system thruster changeout work is complete. Preparations are underway for the upcoming leak and functional checks of the auxiliary power units. The waste containment system will be installed next week. In the Vehicle Assembly Building, the right forward center segment was stacked yesterday as planned. Stacking of the right forward segment is underway today. Routine thermal protection system work continues.

Endeavour/OV-105 (STS-67)

The orbiter has been jacked and leveled. Access is being established into the aft main engine compartment today. The crew access hatch has been opened. Preparations are underway for removing the ferry flight tailcone which is scheduled for Thursday. The payload bay door strongback is being attached today in preparation for opening the payload bay doors tomorrow. Post-flight inspections of the windows are underway.